Work From Home Expense Calculator

Estimate how much you might be able to claim for using your home for business. Figures are for guidance only – always check with a qualified accountant.

Flat Rate Method

Weeks worked from home in the year

Flat rate per week (£)

Tip: enter the flat rate per week you want to use (e.g. agreed rate with your accountant).

Detailed Cost Apportionment

Add your annual home running costs and how much of your home is used for business.

Rent or mortgage interest (£/year)

Council tax (£/year)

Gas, electric, water (£/year)

Broadband & phone (£/year)

Home insurance (£/year)

Other home costs (£/year)

Total number of rooms (excluding bathrooms)

Rooms used for business

Business use of that room (%)

Disclaimer: This calculator provides a rough estimate only and does not constitute tax advice. The correct method and figures depend on your specific circumstances and HMRC rules. Always speak to your accountant before making claims on a tax return.

Personal vs Limited Company – Rental Income Tax Comparison

Compare a simplified tax position on your rental profits if you own property personally versus through a limited company (SPV). This focuses on rental income only and is a guide, not advice.

1. Rental profit

Annual rental profit before tax (£)

Comparison period (years)

Use your expected annual rental profit after all running costs (including mortgage interest).

2. Personal ownership

Marginal income tax rate on rental profits (%)

This uses a single percentage on your profit and ignores detailed bands, personal allowance and reliefs.

3. Company (SPV) ownership

Corporation tax rate (%)

Dividend tax rate (%)

% of after-tax company profit you take as dividends

Anything not extracted is treated as retained in the company for reinvestment.

Disclaimer: This is a very simplified illustration based only on rental profit and flat tax percentages. It ignores Section 24 rules, tax bands, allowances, NIC, mortgage criteria, other income and future disposals. It is not tax advice. Always get personalised advice before changing ownership structure.